Abstract. The use of video-based multimedia simulations for teaching functional skills to persons with developmental disabilities remains an unexplored application of technology for this group. This article examines the historical literature in this area, and discusses future considerations, design issues, and implications of using multimedia simulations. Implementation issues are presented, and suggestions regarding design, development, and application of multimedia simulations are offered. Considerations address the importance of appropriate role modeling and the combination of video-based simulation and in vivo training to foster generalization and maintenance in the context of transition to the real world.The results of research indicate that successful community-based living and employment for persons with developmental disabilities is linked to the functional skills and knowledge they possess relevant to their home, community, and employment situations (Cuvo 8c Klatt, 1992;Wolfe, 1994). When these skills are taught in the context of community-based instruction, learning is more efficient and long term (Langone, 1990). Community-based instruction is a powerful approach for teaching functional living and vocational skills and has been shown to enhance students' learning of skills needed to become independent in their adult lives (McDonnell, Hardman, Hightower, Keifer-O'Donnell, & Drew, 1993;Snell & Browder, 1986).One issue associated with the delivery of community-based instruction is that the logistics of getting students to training sites frequently enough for learning to occur can pose problems because of travel and scheduling con- For students with developmental disabilities, simulations must be age-appropriate and functional, providing a method for the students to achieve performance in natural settings (Horner, McDonnell, & Bellamy, 1986 (McDonnell & Horner, 1985).The results of research indicate that in order for students to perform skills and generalize those skills in a variety of settings, they had to be taught in several natural settings (McDonnell, Horner, & Williams, 1984). Given the problems of training in the community and the additional problems of providing multiple experiences in the natural setting, researchers explored the use of simulations as an alternative for providing a range of experiences. Neef, Lensbower, Hockersmith, DePalma, and Gray (1990) Brown, Collins, and Duguid (1989) and Lave (1988) believe that learning should be cognitively situated to take place in realistic settings under the guidance of &dquo;experts&dquo; who assist learners with the knowledge they need to solve problems and provide the cultural indoctrination necessary to be successful in certain community environments. A technology-based application of situated cognition has been termed &dquo;anchored instruction&dquo; (CTGV, 1990(CTGV, , 1993b